So iron left to own devices in the atmosphere in the presence of a little bit of water, with the water form iron oxide.

铁在大气中，在存在,少量水的条件下，大气会开始与水结合产生氧化铁。

麻省理工公开课 - 热力学与动力学课程节选

At the end of last class I suggested that from here on I'm going to be assuming that there's no soul.

上一节课的最后,我说了从现在开始,我假定灵魂是不存在的。

耶鲁公开课 - 死亡课程节选

But the presence of the dog there is a conditioned stimulus and so you grew to be afraid of dogs.

而这时狗的存在就变成了条件刺激,所以你开始对狗心生恐惧。

耶鲁公开课 - 心理学导论课程节选

So, when there is extra glucose you want to put it into the cells that can use it immediately.

当有额外的糖分存在时,能迅速利用糖分的细胞就开始摄取糖分

耶鲁公开课 - 生物医学工程探索课程节选

Hanson says and I'm quoting him, "The real beginning in the West of individual property holding on a large scale is what he is describing."

我引述汉森说的话,他所描述的是西方私有财产,广泛存在的真正开始

耶鲁公开课 - 古希腊历史简介课程节选

Way back at the start of the semester when we asked,Why believe in souls?

学期一开始的时候我们研究过为何要相信灵魂的存在？

耶鲁公开课 - 死亡课程节选

So at the very same moment that positing the nonsplitting of souls seems to solve the fission problem of duplication, it yanks the rug out from underneath the soul theorist by undermining one of the types of arguments for believing in the soul in the first place.

所以在为了解决复制产生的裂变问题,营造出灵魂的不分割性时，也侵蚀了一开始相信灵魂的存在的论据,从内部动摇了灵魂理论者。

耶鲁公开课 - 死亡课程节选

You could use PCR to do that because if you amplify a gene in PCR, that gene had to be present from the beginning.

你可以用PCR技术来鉴定,因为如果你能用PCR扩增某一段基因,说明它从一开始就肯定是存在的

耶鲁公开课 - 生物医学工程探索课程节选

That's a nice answer to the problem of fission, but notice the problem it raises for the argument for believing in a soul in the first place.

这对于裂变问题是个更好的答案，但请注意这个答案又引起了新的问题,这就是一开始相信灵魂的存在时的说法。

耶鲁公开课 - 死亡课程节选

When did I begin to exist on the personality theory?

根据人格理论，我是什么时候开始存在的呢？

耶鲁公开课 - 死亡课程节选